Unreviewed, rolling out r143382 and r143401.
http://trac.webkit.org/changeset/143382
http://trac.webkit.org/changeset/143401
https://bugs.webkit.org/show_bug.cgi?id=106457

Breaks Chromium win/mac canary compilation

Source/Platform:

* chromium/public/Platform.h:

Source/WebKit/chromium:

* public/platform/WebKitPlatformSupport.h:
(WebKit):
(WebKitPlatformSupport):
(WebKit::WebKitPlatformSupport::idbFactory):
(WebKit::WebKitPlatformSupport::~WebKitPlatformSupport):
* src/IDBFactoryBackendProxy.cpp:
(WebKit::IDBFactoryBackendProxy::IDBFactoryBackendProxy):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk/Source/Platform/chromium/public@143403 268f45cc-cd09-0410-ab3c-d52691b4dbfc